beautypg.com

13 irqs, 14 miscellaneous (misc), Irqs – Kontron COMe-bP5020 User Manual

Page 31: Miscellaneous (misc), Irq routing scheme, Carrier come_bp5020

background image

www.kontron.com

31

User Guide

COMe-bP5020

2.5.2.13 IRQs

The COMe-bP5020 supports five IRQ inputs which can be configured for edge/level, high and low active usage. The operational
mode of the IRQs is programmed via the Carrier Interrupt Mode1 and Carrier Interrupt Mode2 registers. Refer to Chapter 3 for
further information.

The following figure demonstrates the IRQ routing of the COMe-bP5020.

F igure 5: IRQ Routing Scheme

2.5.2.14 Miscellaneous (MISC)

These signals are normally predefined for an X86 architecture board and have no defined functionality on Power Architecture®
CPUs. On the COMe-bP5020 these signals may be used as general purpose output.

Watchdog

Timer

IRQ1..5#

CPU_IRQ7..11#

Carrier

Interrupt

Mode

0x374

0x375

Interrupt

Enable

Board

Interrupt

Pending

0x376

0x377

0x378

0x37A

0x37B

0x37C

Interrupt

Multiplexer

0x380

0x381

1

5

1

PWROK

BATLOW#

WAKE0#

WAKE1#

CARRIER

COMe_bP5020

EXCD0_CPPE#

EXCD1_CPPE#

0x28C